Answer:
Insert mode
Step-by-step explanation:
In editing a document in text editors such as MS Word, there are two types of mode available.
i. Insert mode: This mode allows users to write texts without erasing anything. As new characters are typed, texts to the right of the insertion point are moved or displaced to the right thus preventing overwriting.
ii. Overtype mode: This mode allows users to write texts by erasing texts to the right of the insertion point.
Note: To enable either of this mode, press the "Insert" key on the keyboard. This key toggles between the Insert and the Overtype modes.